<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录系统</title>
    <style type="text/css">
        body {
            margin: 0;
            padding: 0;
            background: lightblue;
            color: #d9d9d9;
        }

        .top {
            background: gainsboro;
            width: 100%;
            height: 35px;
            color: #17A1FF;
            font-size: 18px;
            line-height: 35px;
            text-align: center;
        }

        .loginbg {
            width: 30%;
            background: #000;
            margin: 20px 0 0px 0;
            border-radius: 30px 30px 30px 30px;
            /*background-image: url("http://img.netbian.com/file/2022/0223/010035r3aFr.jpg");*/
            /*opacity:0.1;*/
        }

        .blue {
            color: #17A1FF;
            font-size: 18px;
            line-height: 50px;

        }

        .user_ico {

            background-image: url("http://v.bootstrapmb.com/2021/8/apbk210845 /img/login_ico.png");
            background-repeat: no-repeat;
            background-position: -125px -34px;
            margin: 10px 13px;
            position: absolute;
        }

        .user {
            width: 50%;
            height: 30px;
            border-width: 1px;
            border-radius: 20px 20px 20px 20px;
            margin: 5px 0 20px 5px;
            color: #007DDB;

            /*border: rgba(255,255,255,0.2) 2px solid !important;*/
            /*background-color:transparent*/
            background-color: #d9d9d9;
        }

        .login {
            text-align: center;
            font-size: 20px;
            line-height: 50px;
            width: 50%;
            height: 50px;
            border-radius: 10px 10px 10px 10px;
            margin: 15px 0 20px 55px;
            background-color: #007DDB;
            color: #FFFFFF;
        }

        .pic {
            margin: 10px auto;
            margin: 150px 0 0px 0;
        }

        img {
            /*border-radius: 20px;*/

            border-radius: 50%
        }
    </style>
</head>
<body>
<div class="top">登录操作</div>
<div align="center">
    <div class="pic">


    <div class="loginbg">
        <p class="blue">登录系统</p>

<form action="/loginPage" method="post">
 用户名: <input type="text" name="username"/><br>
 用户名: <input type="password" name="password"/><br>
<input type="submit" value="登录"/>
</form>
        <a href="Add1">
            <input type="submit" value="注册">
        </a>
</div>
</div>

</div>

</body>
</html>